FAQ
Which cities are covered?
120 US cities whose police departments publish incident-level open data. Missing is not zero.
Is the whole country covered?
No. Coverage depends on what each department publishes.
What time span is included?
Archive data runs 2000–2026, depending on the portal.
Where does the data come from?
City and police open-data portals; populations from the US Census Bureau.
How often is it updated?
On each portal’s release cadence, from daily to monthly. Frozen feeds are marked ⚠.
Why do these numbers differ from FBI statistics?
The FBI counts reported offenses under its own rules. This map counts the incidents each department publishes as open data.
How is location privacy handled?
Coordinates are rounded to ~111 m — not street-level addresses.